Window-guard.



B. FRANKLIN.

WINDOW GUARD.

APPLICATION FILED )AN.24|1916.

l ,Q39AFY3D Patnred Sept. 11, 1917.

BENJAMIN FRANKLIN, on enann COMPANY, or

Specification of Letters Patent.

CHICAGO, ILLINOIS, ASSIGNOR TO SECURITY WINDOW CHICAGO, ILLINOIS A CORPORATION OF ILLINOIS.

WINDOW-GUARD.

Patented Sept. 111, 191%.

. Application filed January 24, 1916. Serial No. 73,788.

To all whom it may concern:

Be it known that I, BENJAMIN FRANKLIN,

a citizen of the United States, and a resident of Chicago, in the county, of Cook and State of Illinois, have invented certain new and useful Improvements in Window-Guards,

and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

TlllS invention relates to improvements 1n window guards and consists of the matters hereinafter described and more particularly pointed out in the appended claims.

The present lnvention is especially applicable to window guards of thekind illustrated and described in my rior Patent No. 1,110,678 hearing date of eptember 15th, 191 .1. The window guard forming the sub ject'lmatter of said patent is not adjustable to windows of different widths, so that it is required to manufacture it 1n varied sizes, to suit various standard widths of windows. The object of the present invention is to provide a window guard of the kind referred to with means for adjusting its width, so that but one size of window guard need be made and kept on hand for use with windows of difierent widths.

A particular advantage in the use of the arrangement shown is that. the guard or grating is in the form of a rigid structure,

the extensible fastening devices being so connected thereto as not, tofllessen the security of the guard or interfere in any manner with its normal operation. The form of connection between the sash, extensible bar and grating is such that so long as the bar is connected to the sash it cannot be disconnected from the grating. This function is'inherent in the claimed structure and it is therefore unnecessary to rely upon secondary locks to insure the integrity of the grating; y

Inthe drawings a Figure 1 is a fragmentaryview as looked at from the inside of a building, of a window casing or frame illustratin my improved window guard attachedln proper position'and with the lower window sash in a partly open position,

upper left hand corner Fig. 2 is a plan section view on an enlarged scale, the plane of the section being indicated by the line 22 of Fig. 1.

Fig. 3 is a detail perspective view of the of my improved guard as viewed in Fig. 1.

Fig. 4 is a detail vertical section on a further enlarged scale, the plane of the seciion beingindicated by the line 4: 1 of Referring now in detail to that embodiment of my invention illustrated in the accompanying drawings:10 indicates the window casing or frame and 11 the horizontal sill thereof, 12 and 13 indicate the upper and lower sash members adapted for vertical sliding movement in suitable guides or runways forming a part of said casing.

14 indicates a vertically arranged channel member which is attached to the inner face of the upright side members 13 of the lower window sash, there being of course one of such channel members attached to each upright side member 13 of said sash. The channel 14 is of a U-shape in cross section and is of a length approximating the vertical height of the member 13 to which it is attached by means of screws or in any other suitable manner. Extending approximately from top to bottom of said channel is a slot 14 closed at its ends but having a circular enlargement 15 at its upper end.

16 indicates an anchor plate secured to the window sill, there being one of such plates (as in the construction illustrated in my prior patent), adjacent each upright member of the window casing. Said plate is rectangular and has a centrally arranged tubular extension 16 on its bottom side which is seated within a recess 17 formed in the sill 11. The plate is attached to the sill by means of screws 16 with its top face above the plane of the window sill. In said plate is provided an aperture 16 which opens into the interior of the extension 16 for a purpose which will presently appear.

20 indicates the window guard proper which is of a height and width approximating the height and width of the average window sash. The exact height of the guard with reference to the height of the window is not as of great importance, but the width thereof whereby it may be operatively en- "nel bars.

gaged with the upright channels :14 on the sash member 13 is of importance-as is readily apparent.

As in the caseofthe construction of my.

prior patent, .the window guard is preferably made 1n the form of an open frame comprising upright side members or bars21: and top and bottom horizontal members or bar-s22 and 23. The :frame' is closed'bya grating or like constructlon, capable of freely admitting light and'ai-rwhile at the same time preventing the passage through the "frame 'of persons or children from the inside or of burglars or thievesfrom the This frame is illustrated in the outside. drawings'as being closed by a grating made oflaterally spacedbars 24, attached at their ends to the top and bottom horizontal mem bers 22 and 23' ofthe'frame 20 and braced at the middle by a'bar 25.

The top and bottom members 22' and 23 l of the frame and also the intermediate bar 25are' preferably made'inthe form'of chanintermediartemember 25 are arranged with the channeled sides down, while the top member 22' is arranged with the channeled side up. A metalstrip 27 is attached to the flanges ofthe top channel bar, thereby forming a tube substantially square in cross section. f V

30 indicates an L-shaped extenslon member comprising a relatively long arm 31 and 'a short arm 32 arranged at substantially right, angles thereto. The long arm 31 is of such cross section as to fit easily into the passageway in the top member% of the window guard. The short arm 32 is preferably made cylindric in cross-section and is reduced in diameter at its end, near which itis provided withoppositely facing notches 34:. The end of the arm 325s thus made capable of locking engagement within the slot 1 1 of the channel 1 1, after its endhas been thrust throughthe enlarged part 15 of said slot. The'arm 31 of the member 30 may be adjusted lengthwise in the top horizontal member 22 of the window guard frame 20 so as to adjust it to window sashes of difi'erent widths. When the said member SOis properly adjustedrelative tothe horizontal member 22 so that the short arm 3Qjthereof will register with the slot 1 1 in the upright channel 14 on the'window sash, it is rigidly securedin its adjusted position by means of a set screw 33 extending through the inside flange of the top horizontalmernber 22 and engaged with the-edge of the arm 31.

"As in the case of theeconstruction illustrated'in my prior patent, the frame 20 is removably attached so that'the lower 'sash may'be freely raised and lowered as desired and when the sash 'is'in a raised position,

=- the guard as a whole cannot be removed "The bottom member 23' and the 7 ,ebendingmthe" same inwardly to :forrnihe;

hook. The said hooks are adapted to be in- "serted 'throu'gh' 'the apertures 16 in the anchor plate 16 attached to the sill 11 so that when .the guard as a wgholeiisin an upright position; the saidhooks will each'l ie within the tubular extension-'16 oftheas sociatedplate a short .fdi'sta'nce below the top of said'plate. When in this position the bottom horizontal member 12-3 rests upon the rectangular top of the anchor 'plate, thus preventing the samedrom coming in' contact with the sill to mar or injure itQ i 'Thegguard is attached to the window sill having the anchor plates and a window s'ash having the upright channels 14: in'the'i'ollowing manner. The lower winidow' sash must bein closed position'fThelframe 20 is thenhe'ld in front ofthe sash with'its .top

end inclinedtoward the interior of the room. The bottom horizontal member 23' is then moved to bring its inner edge into a position of rest upon theinner margin of the anchor plate top. and when in thisposition'the hook members 27 are"insert ed through the apertures- "16P; in saidanchor plate tops. The frame 20 is then swung about the inner edge of said bottom horizontal member as were into verticalpo'sition which brings the-hooks into the interior of the anchor plate tubular extension 16 in a manner permitting a slight amount oflimited vertical play of the guard asa whole. If. the proper adjustment of the L-shapedbracket301has been previously made, with respect to the horizontal top member '22} and slot "14 inthe channel 1'45, the free endofthe short, arm of said member'3'O will engagethat part of theupright channel [1 1. defining the slots 14: near the enl'argementflf; atltheiupper end vthereof. In this position it is apparent, the' free end of the shorter .arm 32 cannotrbe en- 7 tered'through the slot 1 1 into theinterior. ofthe' channel 14. ,Thegguard as a Whole may be then slightly raised until the hooks 1 27 engage with the bottomface of the top plate of the anchor plate, when thefree'end of the shortfllm 32 of the member 30 is'in register with the enlargement '15 at the upper end of the slot 1d of the channel and through which it can now pass. A slight movement outwardly is given the upper end of the guard so thatlthe end of the short arm 32 passes through the apertures 15 after which th {.5 1 211d isallowed to drop ,u'n-tilj the bottom horizontal member 23 of the frame rests upon the top "of the anchor plates 16. The notches formed in the free end of the short arm 32 will then engage within the slots 14 of the channel. To remove the window guard the operation for attaching the same in place is just reversed.

If, when attaching the Window guard it is found that the end of the arm 32 of the l shaped extension member does not regis ter or aline with the slots 14 in the upright channel 14, the set screw 33 in the upper horizontal member 22 is loosened and the extension member is moved inwardly or outwardly in the bar 22 until the proper adjustment is acquired. The set screw 33 is then again tightened to secure the parts in the adjusted position.

lVhile I have illustrated but one-half or one side of my proposed construction, it is apparent that the missing portion may be a duplicate thereof.

I claim as my invention 1. In a window guard, the combination with the sill and sash of a grating in the form of a rigid structure, means at one end thereof for engaging the sill, and extensible portions at each side of the grating, said portions being constructed to interlock with the grating and sash and being inseparable from the grating when both thereof are in operative engagement with the sash, substantially as described.

2. In a window guard, the combination of Copies of this patent may be obtained for five cents each, by addressing the a grating in the form of a rigid structure, a frame member at one end of said structure being of tubular form and angular in cross section, means at the opposite end of said structure for interlocking with a window frame, and a laterally extensible arm, one end of which is adapted to interfit with and telescopically engage said angular tube and the other end of which is provided with means for interlocking with a sash, said arm being inseparable from said grating when in engagement with a sash, substantially as described.

3. In a window guard, the combination with the window frame and sash of a grating in the form of a rigid structure, means at one end thereof for engaging the Window frame and a laterally extensible portion at the opposite end of the grating said portion interlocking with the grating and said sash and being inseparable from the grating when in operative engagement with the sash, substantially as described.

In testimony, that I claim the foregoing as my invention I afiix my signature in the presence of two witnesses, this 29th day of September A. D. 1915.

' BENJAMIN FRANKLIN.

Witnesses:

T. H. Allrnnos, KARL W. DoLL.

"Commissioner 011' Patents,

Washington, D. G. 

